238130890 has 32 divisors (see below), whose sum is σ = 455420880. Its totient is φ = 89478144.

The previous prime is 238130881. The next prime is 238130897. The reversal of 238130890 is 98031832.

238130890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 211906249 + 26224641 = 14557^2 + 5121^2 .

It is not an unprimeable number, because it can be changed into a prime (238130897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367 + ... + 21826.

Almost surely, 2^238130890 is an apocalyptic number.

238130890 is a deficient number, since it is larger than the sum of its proper divisors (217289990).

238130890 is a wasteful number, since it uses less digits than its factorization.

238130890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22266.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 238130890 is about 15431.4902067169. The cubic root of 238130890 is about 619.8290284728.

The spelling of 238130890 in words is "two hundred thirty-eight million, one hundred thirty thousand, eight hundred ninety".